Mini 14 bar Pressure Module High Resolution Pressure Sensor with IC and SPI Interface

Mini 14 bar Pressure Module High Resolution Pressure Sensor with IC and SPI Interface    Model Number :  MS5803-14BA
  GENERAL DESCRIPTION
 The MS5803-14BA is a new generation of high resolution pressure sensors with SPI and I2C bus interface. It is optimized for depth measurement systems with a water depth resolution of 1cm and below. The sensor module includes a high linear pressure sensor and an ultra low power 24 bit ΔΣ ADC with internal factory calibrated coefficients. It provides a precise digital 24 Bit pressure and temperature value and different operation modes that allow the user to optimize for conversion speed and current consumption. A high resolution temperature output allows the implementation of a depth measurement systems and thermometer function without any additional sensor. The MS5803-14BA can be interfaced to any microcontroller. The communication protocol is simple, without the need to programming internal registers in the device. The gel protection and antimagnetic stainless steel cap protects against 30 bar overpressure water resistant. This new sensor module generation is based on leading MEMS technology and latest benefits from the Intersema’s proven experience and know-how in high volume manufacturing of pressure modules have been widely used for over a decade. This sensing principle employed leads to very low hysteresis and high stability of both pressure and temperature signal.
Benefit    • High resolution module, 0.2 mbar
• Fast conversion down to 1 ms
• Low power, 1 µA (standby < 0.15 µA)
• Integrated digital pressure sensor (24 bit ΔΣ ADC)
• Supply voltage 1.8 to 3.6 V   • Operating range: 0 to 14 bar, -40 to +85 °C
• I2C and SPI interface (Mode 0,3)
• No external components (Internal oscillator)
• Excellent long term stability
• Hermetically sealable for outdoor devices      Features   • Mobile water depth measurements systems    • Diving computers   • Adventure or multi-mode watches   Application   Mobile altimeter / barometer systems
Weather control systems
Adventure or multi-mode watches
GPS receivers ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Conditions	Min	Max	Unit	Notes
Supply voltage	VDD	Ta = 25 °C	-0.3	4	V
Storage temperature	TS		-40	+85	℃	1
Overpressure	P	Ta = 25 °C		10	bar	2

  RECOMMENDED OPERATING CONDITIONS

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Operating pressure range	P		10		1100	bar
Supply voltage	VDD		2.2	3.0	3.6	V
Supply current, average (1) during conversion (2) standby (no conversion)	Iavg Isc Iss	VDD = 3.0 V		4 1	0.1	µA mA µA
Current consumption into MCLK (3)		MCLK = 32.768 kHz			0.5	> µA
Operating temperature range	T		-40		+85	℃
Conversion time	tconv	MCLK = 32.768 kHz			35	ms
External clock signal (4)	MCLK		30.000	32.768	35.000	kHz
Duty cycle of MCLK			40/60	50/50	60/40	%
Serial data clock	SCLK				500	kHZ

 Electrical Cahracteristics Pressure Output Characteristics With the calibration data stored in the interface IC of the MS5540C, the following characteristics can be achieved:
NOTES
1) A stable pressure reading of the given resolution requires taking the average of 2 to 4 subsequent pressure
values due to noise of the ADC.
2) Maximum error of pressure reading over the pressure range.
3) Maximum error of pressure reading over the pressure range after offset adjustment at one pressure point.
4) With the second-order temperature compensation as described in Section "FUNCTION". See next section
for typical operating curves.
5) The long-term stability is measured with non-soldered devices.